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Patent Searching and Data


Title:
PHENOLIC RESIN FOAM COMPOSITION
Document Type and Number:
Japanese Patent JPS61106639
Kind Code:
A
Abstract:

PURPOSE: To obtain a phenolic resin foam compsn. having a uniform, fine cell structure and a high closed-cell ratio, by blending a surfactant contg. an ether compd., an acidic hardener and a low-boiling org. blowing agent.

CONSTITUTION: A phenolic resin foam compsn. is obtd. by blending a surfactant, an acidic hardener and a low-boiling org. blowing agent. Said surfactant contains an ether derived from a nonionic surfactant and a methylol group-contg. phenol as at least one surfactant. The surfactant is used in a quantity of 0.1W10pts.wt. per 100pts.wt. resol type phenolic resin precondensate. Said surfactant may be mixed with at least one conventional surfactant. The resol type phenolic resin precondensate can be prepd. by reacting a phenol with an equimolar or excessive amount of an aldehyde in the presence of an alkaline catalyst.


Inventors:
YOSHIDA TORU
ICHIHARA AKINOBU
UKAI MASAHIRO
Application Number:
JP20849784A
Publication Date:
May 24, 1986
Filing Date:
October 03, 1984
Export Citation:
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Assignee:
SHOWA HIGHPOLYMER
DAI ICHI KOGYO SEIYAKU CO LTD
International Classes:
C08J9/04; C08J9/14; (IPC1-7): C08J9/14
Attorney, Agent or Firm:
Akaoka Mio